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[edit] Cheats

Codes are entered at the Start screen.

Secret	Cheat
Burger King Challenge
Castrol Syntec Ford GT
Extra Money	Have a Need for Speed: Underground 2 game save on your memory card to receive $10,000
Extra Profit	Sell upgrades on the car before you sell it, and it will still sell for the upgraded price

[edit] Unlockable Cars

Car	Beat Blacklist Boss #	Other
Aston Martin DB9	7	N/A
Audi A3 3.2 Quattro	15	N/A
Audi A4 3.2 FSI Quattro	14	N/A
Audi TT 3.2 Quattro	15	N/A
BMW GTR (Race version)	1	N/A
Cadillac CTS	12	N/A
Chevrolet Cobalt SS	N/A	Unlocked at the start of the game.
Corvette C6	5	N/A
Corvette C6.R	N/A	Complete 100% of the game.
Dodge Viper SRT 10	6	N/A
Fiat Punto	N/A	Unlocked at the start of the game.
Ford GT	4	N/A
Lamborguini Gallardo	6	N/A
Lamborguini Murciélago	4	N/A
Lexus IS300	N/A	Unlocked at the start of the game.
Lotus Elise	8	N/A
Mazda RX-7	9	N/A
Mazda RX-8	12	N/A
Mercedes-Benz CLK 500	8	N/A
Mercedes-Benz SL 500	11	N/A
Mercedes-Benz SLR McLaren	3	N/A
Mitsubishi Eclipse	14	N/A
Mitsubishi Lancer Evolution VIII	11	N/A
Mustang GT	12	N/A
Pontiac GTO	10	N/A
Porsche 911 Carrera S	7	N/A
Porsche 911 Turbo S	5	N/A
Porsche Carrera GT	3	N/A
Porsche Cayman S	10	N/A
Renault Clio V6	13	N/A
Subaru Impreza WRX STi	9	N/A
Toyota Supra	13	N/A
Vauxhall Monaro VXR	10	N/A
Volkswagen Golf GTI	N/A	Unlocked at the start of the game.